Figure 1:

The diagrams of the μDKI pulse sequence. A) Two pairs of diffusion gradients (g₁ and g₂) are orthogonal to one another, with their magnitudes modulated by the trigonometry of angle ϕ. B) The μDKI diffusion sampling scheme used in our study. The arrows indicate the directions of the 78 independent vectors $\stackrel{\rightharpoonup }{q}=\text{γgδ}(\text{g}\cdot \text{cos}\left(\varphi \right)\stackrel{\rightharpoonup }{e_1}+\text{g}\cdot \text{sin}\left(\varphi \right)\stackrel{\rightharpoonup }{e_2})$, which are uniformly distributed in x-y, x-z, and y-z planes.